Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Upper Midwest Climate Region

Precipitation Rankings, December 1974

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
December 1974
1-Month
1.12"
(28.45mm)
1.25"
(31.75mm)
-0.13"
(-3.30mm)
47th Driest
Driest since:
1943
82nd Wettest
Wettest since:
2015
Ties: 1901, 1938, 1981
Nov–Dec 1974
2-Month
2.93"
(74.42mm)
3.10"
(78.74mm)
-0.17"
(-4.32mm)
56th Driest
Driest since:
1976
73rd Wettest
Wettest since:
2015
Ties: 1956
Oct–Dec 1974
3-Month
4.92"
(124.97mm)
5.38"
(136.65mm)
-0.46"
(-11.68mm)
47th Driest
Driest since:
1976
82nd Wettest
Wettest since:
1982
Sep–Dec 1974
4-Month
6.67"
(169.42mm)
8.74"
(222.00mm)
-2.07"
(-52.58mm)
17th Driest
Driest since:
1976
112th Wettest
Wettest since:
2019
Aug–Dec 1974
5-Month
11.02"
(279.91mm)
12.27"
(311.66mm)
-1.25"
(-31.75mm)
39th Driest
Driest since:
1976
90th Wettest
Wettest since:
2019
Jul–Dec 1974
6-Month
13.59"
(345.19mm)
15.84"
(402.34mm)
-2.25"
(-57.15mm)
21st Driest
Driest since:
1976
108th Wettest
Wettest since:
1900
Jun–Dec 1974
7-Month
17.52"
(445.01mm)
19.89"
(505.21mm)
-2.37"
(-60.20mm)
21st Driest
Driest since:
1976
108th Wettest
Wettest since:
2010
May–Dec 1974
8-Month
21.91"
(556.51mm)
23.31"
(592.07mm)
-1.40"
(-35.56mm)
38th Driest
Driest since:
1976
91st Wettest
Wettest since:
2019
Apr–Dec 1974
9-Month
24.86"
(631.44mm)
25.81"
(655.57mm)
-0.95"
(-24.13mm)
40th Driest
Driest since:
1976
89th Wettest
Wettest since:
2019
Mar–Dec 1974
10-Month
26.44"
(671.58mm)
27.52"
(699.01mm)
-1.08"
(-27.43mm)
41st Driest
Driest since:
1910
88th Wettest
Wettest since:
2019
Feb–Dec 1974
11-Month
27.44"
(696.98mm)
28.54"
(724.92mm)
-1.10"
(-27.94mm)
39th Driest
Driest since:
1910
90th Wettest
Wettest since:
2019
Jan–Dec 1974
12-Month
28.65"
(727.71mm)
29.68"
(753.87mm)
-1.03"
(-26.16mm)
43rd Driest
Driest since:
1910
86th Wettest
Wettest since:
2019
Ties: 1962
Jul 1973–Dec 1974
18-Month
46.76"
(1,187.70mm)
45.59"
(1,157.99mm)
1.17"
(29.71mm)
74th Driest
Driest since:
1976
54th Wettest
Wettest since:
2019
Jan 1973–Dec 1974
24-Month
62.83"
(1,595.88mm)
59.39"
(1,508.51mm)
3.44"
(87.37mm)
88th Driest
Driest since:
1989
40th Wettest
Wettest since:
2019
Jan 1972–Dec 1974
36-Month
95.94"
(2,436.88mm)
89.07"
(2,262.38mm)
6.87"
(174.50mm)
103rd Driest
Driest since:
1989
24th Wettest
Wettest since:
2019
Jan 1971–Dec 1974
48-Month
126.05"
(3,201.67mm)
118.71"
(3,015.23mm)
7.34"
(186.44mm)
94th Driest
Driest since:
1936
32nd Wettest
Wettest since:
2019
Jan 1970–Dec 1974
60-Month
157.13"
(3,991.10mm)
148.36"
(3,768.34mm)
8.77"
(222.76mm)
93rd Driest
Driest since:
1936
32nd Wettest
Wettest since:
2019

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